Distribution of baseline sleep duration in cohort members in the at-risk sample, those in the analytic sample, and those not in the analytic sample, MMAS, Boston, MA, 1987–2004
| Sleep duration . | At-risk sample* . | In analytic sample† . | Not in analytic sample . |
|---|---|---|---|
| n | 1,564 | 1,139 | 425 |
| ≤5 h | 147 (9.4) | 95 (8.3) | 52 (12.2) |
| 6 h | 309 (19.8) | 223 (19.6) | 86 (20.2) |
| 7 h | 554 (35.4) | 423 (37.1) | 131 (30.8) |
| 8 h | 453 (29.0) | 328 (28.8) | 125 (29.4) |
| >8 h | 101 (6.5) | 70 (6.2) | 31 (7.3) |
| Sleep duration . | At-risk sample* . | In analytic sample† . | Not in analytic sample . |
|---|---|---|---|
| n | 1,564 | 1,139 | 425 |
| ≤5 h | 147 (9.4) | 95 (8.3) | 52 (12.2) |
| 6 h | 309 (19.8) | 223 (19.6) | 86 (20.2) |
| 7 h | 554 (35.4) | 423 (37.1) | 131 (30.8) |
| 8 h | 453 (29.0) | 328 (28.8) | 125 (29.4) |
| >8 h | 101 (6.5) | 70 (6.2) | 31 (7.3) |
Data are n (%).
Men in the at-risk sample were those without diabetes at baseline (n = 1,567). Additional exclusions were for missing sleep duration (n = 2) and age (n = 1) data.
Men in the analytic sample were those in the at-risk sample who could be classified according to diabetes status during follow-up.